Product Description

Designed for Interspiro Spiromatic and Divator breathing valves - negative and positive pressure; this model requires adptors to be used with the 'QS' breathing valve but is otherwise similar to model 346 590 315.

Interspiro breathing valves are the only demand valves approved to EN250 and EN137 that are fully balanced. They have a response time of around 28 milliseconds - ten times faster than most approved demand valves - and they react to pressure changes as low as 20 Pascal, depending on their adjustment and according to the service instructions provided to trained technicians.

Because performance is so advanced and work of breathing so remarkably low, compared to other demand valves; it is important that adjustment is made using dynamic performance testing, so that the full advantage of these designs are available to our discerning customers.

Thus this specially designed test kit affords proper ability to do this - and, indeed, with a suitable manifold adaptor, to test a range of other BVs, at ambient pressure.